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1Summer atmospheric boundary layer structure in the hinterland of Taklimakan Desert, China显示文摘Understanding the characteristics of the structure of desert atmospheric boundary layer and its land surface process is of great importance to the simulations of regional weather and climate.To investigate the atmospheric boundary layer structure and its forming mechanism of Taklimakan Desert,and to improve the accuracy and precision of regional weather and climate simulations,we carried out a GPS radiosonde observation experiment in the hinterland of Taklimakan Desert from 25 June to 3 July,2015.Utilizing the densely observed sounding data,we analyzed the vertical structures of daytime convective boundary layer and nighttime stable boundary layer in summer over this region,and also discussed the impacts of sand-dust and precipitation events on the desert atmospheric boundary layer structure.In summer,the convective boundary layer in the hinterland of Taklimakan Desert developed profoundly and its maximum height could achieve 4,000 m;the stable boundary layer at nighttime was about 400–800-m thick and the residual mixing layer above it could achieve a thickness over 3,000 m.Sand-dust weather would damage the structures of nighttime stable boundary layer and daytime convective boundary layer,and the dust particle swarm can weak the solar radiation absorbed by the ground surface and further restrain the strong development of convective boundary layer in the daytime.Severe convective precipitation process can change the heat from the ground surface to the atmosphere in a very short time,and similarly can damage the structure of desert atmospheric boundary layer remarkably.Moreover,the height of atmospheric boundary layer was very low when raining.Our study verified the phenomenon that the atmospheric boundary layer with supernormal thickness exists over Taklimakan Desert in summer,which could provide a reference and scientific bases for the regional numerical models to better represent the desert atmospheric boundary layer structure.WANG Minzhong WEI Wenshou HE Qing YANG Yuhui FAN Lei ZHANG Jiantao 2016Journal of Arid Land2016,8,6:17
2Hydrology and water resources variation and its response to regional climate change in Xinjiang显示文摘Based on the surface runoff, temperature and precipitation data over the last 50 years from eight representative rivers in Xinjiang, using Mann-Kendall trend and jump detection method, the paper investigated the long-term trend and jump point of time series, the surface runoff, mean annual temperature and annual precipitation. Meanwhile, the paper analyzed the relationship between runoff and temperature and precipitation, and the flood frequency and peak flow. Results showed that climate of all parts of Xinjiang conformably has experienced an increase in temperature and precipitation since the mid-1980s. Northern Xinjiang was the area that changed most significantly followed by southern and eastern Xinjiang. Affected by temperature and precipitation variation, river runoff had changed both inter-annually and intra-annually. The surface runoff of most rivers has increased significantly since the early 1990s, and some of them have even witnessed the earlier spring floods, later summer floods and increasing flood peaks. The variation characteristics were closely related with the replenishment types of rivers. Flood frequency and peak flow increased all over Xinjiang. Climate warming has had an effect on the regional hydrological cycle.XU Changchun CHEN Yaning YANG Yuhui HAO Xingming SHEN Yongping 2010Journal of Geographical Sciences2010,20,4:17
3Spectral analysis and self-adjusting mechanism for oscillation phenomenon in hydrogen-oxygen continuously rotating detonation engine显示文摘The continuously rotating detonation engine(CRDE)is a new concept of engines for aircraft and spacecraft.Quasi-stable continuously rotating detonation(CRD)can be observed in an annular combustion chamber,but the sustaining,stabilizing and adjusting mechanisms are not yet clear.To learn more deeply into the CRDE,experimental studies have been carried out to investigate hydrogen-oxygen CRDE.Pressure histories are obtained during each shot,which show that stable CRD waves are generated in the combustor,when feeding pressures are higher than 0.5 MPa for fuel and oxidizer,respectively.Each shot can keep running as long as fresh gas feeding maintains.Close-up of the pressure history shows the repeatability of pressure peaks and indicates the detonation velocity in hydrogen–oxygen CRD,which proves the success of forming a stable CRD in the annular chamber.Spectrum of the pressure history matches the close-up analysis and confirms the CRD.It also shows multi-wave phenomenon and affirms the fact that in this case a single detonation wave is rotating in the annulus.Moreover,oscillation phenomenon is found in pressure peaks and a self-adjusting mechanism is proposed to explain the phenomenon.Liu Yusi Wang Yuhui Li Yongsheng Li Yang Wang Jianping 2015Chinese Journal of Aeronautics2015,28,3:14
4Unified representation of formulas for single birth processes显示文摘Mu-Fa CHEN Yuhui ZHANG 2014Frontiers of Mathematics in China2014,9,4:13
5Activation of mTORC1 in subchondral bone preosteoblasts promotes osteoarthritis by stimulating bone sclerosis and secretion of CXCL12显示文摘Increasing evidences show that aberrant subchondral bone remodeling plays an important role in the development of osteoarthritis(OA).However,how subchondral bone formation is activated and the mechanism by which increased subchondral bone turnover promotes cartilage degeneration during OA remains unclear.Here,we show that the mechanistic target of rapamycin complex 1(mTORC1)pathway is activated in subchondral bone preosteoblasts(Osterix+)from OA patients and mice.Constitutive activation of mTORC1 in preosteoblasts by deletion of the mTORC1 upstream inhibitor,tuberous sclerosis 1,induced aberrant subchondral bone formation,and sclerosis with little-to-no effects on articular cartilage integrity,but accelerated posttraumatic OA development in mice.In contrast,inhibition of mTORC1 in preosteoblasts by disruption of Raptor(mTORC1-specific component)reduced subchondral bone formation and cartilage degeneration,and attenuated post-traumatic OA in mice.Mechanistically,mTORC1 activation promoted preosteoblast expansion and Cxcl12 secretion,which induced subchondral bone remodeling and cartilage degeneration during OA.A Cxcl12-neutralizing antibody reduced cartilage degeneration and alleviated OA in mice.Altogether,these findings demonstrate that mTORC1 activation in subchondral preosteoblasts is not sufficient to induce OA,but can induce aberrant subchondral bone formation and secrete of Cxcl12 to accelerate disease progression following surgical destabilization of the joint.Pharmaceutical inhibition of the pathway presents a promising therapeutic approach for OA treatment.Chuangxin Lin Liangliang Liu Chun Zeng Zhong-Kai Cui Yuhui Chen Pinling Lai Hong Wang Yan Shao Haiyan Zhang Rongkai Zhang Chang Zhao Hang Fang Daozhang Cai Xiaochun Bai 2019Bone Research2019,7,1:12
6Global change and climate-vegetation classification显示文摘Three phrases of the quantitative study of climate-vegetation classification and their characteristics are presented based on the review of advance in climate-vegetation interaction, a key issue of 'global change and terrestrial ecosystems (GCTE)' which is the core project of International Geosphere-Biosphere Programme (IGBP): (i) characterized by the correlation between natural vegetation types and climate; (? characterized by climatic indices which have obviously been restricted to plant ecophysiology; (iii) characterized by coupling both structure and function of vegetation. Thus, the prospective of climate-vegetation classification for global change study in China was proposed, especially the study coupling climate-vegetation classification models with atmospheric general circulation models (GCMs) was emphasized.Guangsheng Zhou Yuhui Wang 2000Chinese Science Bulletin2000,45,7:12
7The Algorithm of Infeasible Paths Extraction Oriented the Function Calling Relationship显示文摘MU Yongmin ZHENG Yuhui ZHANG Zhihua LIU Mengting 2012Chinese Journal of Electronics2012,21,2:12
8Space-Air-Ground Integrated Network (SAGIN) for 6G: Requirements, Architecture and Challenges显示文摘As the fifth-generation(5G)mobile communication network may not meet the requirements of emerging technologies and applications,including ubiquitous coverage,industrial internet of things(IIoT),ubiquitous artificial intelligence(AI),digital twins(DT),etc.,this paper aims to explore a novel space-air-ground integrated network(SAGIN)architecture to support these new requirements for the sixth-generation(6G)mobile communication network in a flexible,low-latency and efficient manner.Specifically,we first review the evolution of the mobile communication network,followed by the application and technology requirements of 6G.Then the current 5G non-terrestrial network(NTN)architecture in supporting the new requirements is deeply analyzed.After that,we proposes a new flexible,low-latency and flat SAGIN architecture,and presents corresponding use cases.Finally,the future research directions are discussed.Huanxi Cui Jun Zhang Yuhui Geng Zhenyu Xiao Tao Sun Ning Zhang Jiajia Liu Qihui Wu Xianbin Cao 2022China Communications2022,19,2:11
9Effect of Tiaoshen Kaiqiao acupuncture in the treatment of ischemic post-stroke depression:a randomized controlled trial显示文摘OBJECTIVE:To observe the effect of Tiaoshen Kaiqiao acupuncture in the treatment of ischemic post-stroke depression.METHODS:This research was a single-blind, positive-controlled trial done in a single entity.Totally58 patients with ischemic post-stroke depression were randomly divided into two groups.The acupuncture group was given Tiaoshen Kaiqiao acupuncture therapy and placebo starch tablets treatment,while the control group was treated with fluoxetine tablets and body acupuncture treatment.Evaluated the clinical efficacy of the two groups with Hamilton Depression Scale(HAMD),Anti Depression Drug Side Effects Rating Scale(SERS), Clinical Global Impression Scale(CGI) respectively before treatment, the fourth weekend of treatment, the eighth weekend of treatment,the twelfth weekend of treatment.The adverse reactions in two groups were observed and documented.RESULTS:The HAMD scale scores of the two groups in different treatment period were significantly decreased compared with that before treatment(P < 0.05); the score reduction of HAMD scale between the two groups had no significant differences(P > 0.05).There was significant difference between the SERS scores of two groups(P < 0.05); the control group had more adverse reactions, and the score would be increased with the extension of treatment time.Effect index(EI) of CGI in the acupuncture group is better than that of control group(P < 0.05).CONCLUSION:The effects of Tiaoshen Kaiqiao acupuncture and fluoxetine in the treatment of ischemic post-stroke depression were similar, but the former had no obvious adverse reaction and side effects.Li Menghan Zhang Bo Meng Zhihong Sha Tao Han Yuhui Zhao Hong Zhang Chunhong 2017Journal of Traditional Chinese Medicine2017,37,2:10
10Distribution feature of terrestrial heat flow densities in the Bohai Basin,East China显示文摘Temperature logging curves at 8 boreholes and well-testing temperature data at 142 boreholes are used to determine geotemperature gradients in the Bohai Basin. The thermal conductivities of 86 rock samples are measured at laboratory and the effects of porosity and temperature are corrected to obtain conductivities in situ. Terrestrial heat flow densities at 76 wells are determined based on these data. The distribution of the heat flow indicates that the terrestrial heat flow in the Bohai Basin is relatively high with an average value of 65.8 mW/m2. This characteristic is caused by the tectonic evolution of the basin. During Cenozoic, the litho-sphere stretched intermittently and the crust thinned so that heat conducted from the mantle increased and formed thermal abnormity at depth beneath the basin.WANG Liangshu LIU Shaowen XIAO Weiyong LI Cheng LI Hua GUO Suiping LIU Bo LUO Yuhui CAI Dongsheng 2002Chinese Science Bulletin2002,47,10:10
11Performance of sulfate-dependent anaerobic ammonium oxidation显示文摘The performance of sulfate-dependent anaerobic ammonium oxidation was studied.The results showed that both SO42-and NH4+ were chemically stable under anaerobic conditions.They did not react with each other in the absence of biological catalyst(sludge).The anaerobic digested sludge cultivated in an anaerobic reactor for three years took on the ability of oxidizing ammonium with sulfate anaero-bically.The average reduction of sulfate and ammonium was 71.67 mg.L-1 and 56.82 mg.L-1 at high concentrations.The reaction between SO42-and NH4+ was difficult,though feasible,due to its low standard Gibbs free energy change.The experiment demonstrated that high substrate concentrations and low oxidation-reduction potential(ORP) may be favourable for the biological reaction.ZHANG Lei ZHENG Ping HE YuHui JIN RenCun 2009Science China Chemistry2009,52,1:9
12Oil & Gas Drilling Technology in China:Past and Present显示文摘Drilling is a prerequisite for oil and gas exploration. As one of the core upstream business of oil and gas exploration and development, it mainly includesSu Yinao Huang Hongchun Zhou Yuhui Gao Wenkai Zeng Qiang 2009China Oil & Gas2009,16,4:9
13Hollow TiO2-x porous microspheres composed of wellcrystalline nanocrystals for high-performance lithiumion batteries显示文摘Chun Wang Faxing Wang Yujuan Zhao Yuhui Li Qin Yue Yupu Liu Yong Liu Ahmed A. Elzatahry Abdullah Al-Enizi Yuping Wu Yonghui Deng Dongyuan Zhao 2016Nano Research2016,9,1:8
14Nanowire-based transparent conductors for flexible electronics and optoelectronics显示文摘As the necessary components for various modern electronic and optoelectronic devices, novel transparent electrodes(TEs) with the low cost, abundance features, and comparable performance of indium tin oxide(ITO) are inquired materials. Metal nanowires(NWs) with the excellent photoelectric properties as next-generation TE candidates have widely applications in smart optoelectronic devices such as electronic skins, wearable electronics, robotic skins, flexible and stretchable displays. This review describes the synthetic strategies for the preparation of metal NWs, the assemble process for metal NW films,and the practical aspects of metal NW films with the desired properties in various low-cost, flexible,and solution-based photoelectric devices.Jie Xue Jizhong Song Yuhui Dong Leimeng Xu Jianhai Li Haibo Zeng 2017Science Bulletin2017,62,2:8
15Long-term bone and lung consequences associated with hospital-acquired severe acute respiratory syndrome:a 15-year follow-up from a prospective cohort study显示文摘The most severe sequelae after rehabilitation from SARS are femoral head necrosis and pulmonary fibrosis. We performed a 15-year follow-up on the lung and bone conditions of SARS patients. We evaluated the recovery from lung damage and femoral head necrosis in an observational cohort study of SARS patients using pulmonary CT scans, hip joint MRI examinations, pulmonary function tests and hip joint function questionnaires. Eighty medical staff contracted SARS in 2003. Two patients died of SARS, and78 were enrolled in this study from August 2003 to March 2018. Seventy-one patients completed the 15-year follow-up. The percentage of pulmonary lesions on CT scans diminished from 2003(9.40 ± 7.83)% to 2004(3.20 ± 4.78)%(P < 0.001) and remained stable thereafter until 2018(4.60 ± 6.37)%. Between 2006 and 2018, the proportion of patients with interstitial changes who had improved pulmonary function was lower than that of patients without lesions, as demonstrated by the one-second ratio(FEV1/FVC%, t = 2.21, P = 0.04) and mid-flow of maximum expiration(FEF25%–75%, t = 2.76, P = 0.01). The volume of femoral head necrosis decreased significantly from 2003(38.83 ± 21.01)% to 2005(30.38 ± 20.23)%(P = 0.000 2), then declined slowly from 2005 to 2013(28.99 ± 20.59)% and plateaued until 2018(25.52 ± 15.51)%. Pulmonary interstitial damage and functional decline caused by SARS mostly recovered, with a greater extent of recovery within 2 years after rehabilitation. Femoral head necrosis induced by large doses of steroid pulse therapy in SARS patients was not progressive and was partially reversible.Peixun Zhang Jia Li Huixin Liu Na Han Jiabao Ju Yuhui Kou Lei Chen Mengxi Jiang Feng Pan Yali Zheng Zhancheng Gao Baoguo Jiang 2020Bone Research2020,8,1:8
16Structures of the Bohai Petroliferous Area,Bohai Bay Basin显示文摘This paper, for the first time, deals with a more systematic study of the structures in the Bohaipetroliferous area that covers nearly one third of the Bohai Bay basin. The study mainly involves the effects of preexisting basement faults on the basin formation, the characteristics of basin geometry and kinetics, the modelling of the tectonic-thermal history, the polycyclicity and heterogeneity in the structural evolution and the natural seismic tomographic images of the crust and upper mantle. The authors analyze the features of the dynamic evolution of the basin in the paper and point out that the basin in the Bohai petroliferous area is an extensional pull-apart basin.CAI Dongsheng LUO Yuhui YAO Changhua HE Jiankun HU Shengbiao LU Huafu WANG Liangshu 2000Acta Geologica Sinica(English Edition)2000,74,3:8
17Effects of rare earth elements La and Yb on the morphological and functional development of zebrafish embryos显示文摘In recent years,with the wide applications and mineral exploitation of rare earth elements,their potential environmental and health effects have caused increasing public concern.Effect of rare earth elements La and Yb on the morphological and functional development of zebrafish embryos were studied.The embryos were exposed to La3+ or Yb3+ at 0,0.01,0.1,0.3,0.5 and 1.0 mmol/L,respectively.Early life stage parameters such as egg and embryo mortality,gastrula development,tail detachment,eyes,somite formation,circulatory system,pigmentation,malformations,hatching rate,length of larvae and mortality were investigated.The results showed La3+ and Yb3+ delayed zebrafish embryo and larval development,decreased survival and hatching rates,and caused tail malformation in a concentration-dependent way.Moreover,heavy rare-earth ytterbium led to more severe acute toxicity of zebrafish embryo than light rare-earth lanthanum.Jun'an Cui Zhiyong Zhang Wei Bai Ligang Zhang Xiao He Yuhui Ma Yan Liu Zhifang Chai 2012Journal of Environmental Sciences2012,24,2:8
18Carbon-supported Fe/Co-N electrocatalysts synthesized through heat treatment of Fe/Co-doped polypyrrole-polyaniline composites for oxygen reduction reaction显示文摘In this paper,we synthesized cathode catalysts(PANI-PPYR,Fe/PANI-PPYR,Co/PANI-PPYR and Fe-Co/PANI-PPYR)with high performance oxygen reduction by using a simple heat treatment process.These catalysts were fabricated by directly calcining the Fe and/or Co doped polyaniline(PANI)-polypyrrole(PPYR)composites.Their electrocatalytic activity for ORR both in acidic and in alkaline media was investigated by voltammetric techniques.Among the prepared catalysts,Co/PANI-PPYR presents the most positive ORR onset potential of 0.62 V(vs.SCE)in 0.5 mol/L H2SO4 solution or?0.09 V(vs.SCE)in 1 mol/L NaOH solution.In addition,the Co/PANI-PPYR catalyst shows the largest limiting-diffusion current density for ORR,which is 4.3 mA/cm2@0.2 V(vs.SCE)in acidic and 2.3 mA/cm2@?0.3 V(vs.SCE)in alkaline media.In acidic media,a four-electron reaction of ORR on the Co/PANI-PPYR and Fe/PANI-PPYR catalysts is more dominant than a two-electron reaction.In alkaline media,however,a four-electron and a two-electron mechanisms are co-present for the ORR on all the prepared catalysts.Co/PANI-PPYR catalyst also presents good electrocatalytic activity stability for ORR both in acidic and in alkaline media.YI QingFeng ZHANG YuHui LIU XiaoPing YANG YaHui 2014Science China Chemistry2014,57,5:8
19Genetic Mapping of Laminaria japonica and L. Iongissima Using Amplified Fragment Length Polymorphism Markers in a "Two-Way Pseudo- Testcross" Strategy显示文摘Yuhui Li Yingxia Yang Jidong Liu Xiuliang Wang Tianxiang Gao Delin Duan 2007Journal of Integrative Plant Biology2007,49,3:8
20Variation and abrupt change of climate in Ili River Basin, Xinjiang显示文摘在这份报纸,在 7 点收集的每月的降水和温度数据从 1961 ~ 2007 在 Ili 河盆驻扎借助于简单回归分析,跑的平均数, db6 小浪功能和 Mann-Kendall 测试被分析。这研究在过去的 50 年以内在 Ili 河盆在不同时间规模期间揭示了气候变化的特征和降水和温度的突然的变化点。结果证明降水从 mid-1980s 增加了直到 2000 并且自从 2000,继续了在更小的大小增加。在学习时期上,降水在夏天和冬季月期间显著地增加了。温度在 1980 年代末极大地增加了,并且继续显示了从 2000 年的一个增加的趋势介绍。温度增加在夏天,秋天和冬季月期间是很重要的。以不同地理,温度增加在在平原和多山的区域的冬季期间是重要的;增加在在 intermontane 盆的秋天期间也是重要的。在 Ili 河盆的气候变化趋势与北方大西洋摆动和高原季风的变化趋势一致。SUN Huilan 2010Journal of Geographical Sciences2010,20,5:8
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